Tom S
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- May 20, 2011
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I had the opportunity to do some before and after data logs for a local friend. His truck is an 03 with well under a 100k miles on the stock injectors with new O-rings and new IPR O-rings. He reported the truck has more zip and less smoke. His truck had an exceptionally smooth idle with the stock pump and has more of a normal good running truck idle after installing the T500. The duty cycle with T500 at idle was 1% more then the stock pump in the 11% range with stock in the 10% range at the same oil temp. The idle also had a little more tick/knock sound with the T500 but that seemed to be trending down after the truck had some more hard runs on it. there might not have been quite enough miles to get all the air out. The truck had an odd popping note to the exhaust with the stock pump if you were on it hard with a wall to reflect the exhaust note back into the cab. With the T500 that was gone. The boost in this truck comes up amazingly fast with a 38r at altitude.
I think we did a pretty good job keeping things consistent between the tests for a decent comparison. I will post up some graphs on the next page.
I think we did a pretty good job keeping things consistent between the tests for a decent comparison. I will post up some graphs on the next page.